ILLUSTRATIONS. 



PROM ORIGINAL DRAWINGS BY E. HEYN, H. v. KONIGSBRUNN, E. v. RANSONNFT, 

 J. SEELOS, F. TEUCHMANN, 0. WINKLER, AND OTHERS. 



COLOUEED PLATES. 



I. Swarm-spores and Zygospores : Forms op Chlorophtll-bodies. — All the figures 

 from nature, highly magnified, ---....... 



II. Inseotivorous Plants : Sun-dew and Bdttervvort. — From nature by J. Seelos, 



III. Tropical Epiphytes in Ceylon. — From a drawing by H. v. Königsbrunn, 



IV. Pbickly-pears on the Platead of Anahdac, Mexico. — Drawn by Ernst Heyn, 

 V. Autumnal Tints on Lake Erie. — Drawn by Ernst Heyn, .... 



VI. Feather Grass on a Russian Steppe. — Drawn by Ernst Heyn, 

 VII. Queen of the Night (Cereus ni/cticalus). — Drawn by Ernst Heyn, ... 

 VIII. Palmyra Palms, Ceylon. — From a drawing by H. v. Königsbrunn, ... 



FrontU. 

 to face 



Page 



374 

 142 

 222 

 446 

 488 

 616 

 642 

 712 



ILLUSTRATIONS IN THE TEXT. 



Seedlings with Cotyledons and Foliage-leaves, - 9 

 Metamorphoses of Leaves as exhibited by the Poppy, 11 

 Goethe's "Urpflanze", - - - - - 12 



Vegetable Cells, 22 



Protoplasm inclosed in Cells, - - - - 25 

 Cell-chambers, sliovving Intercellular Spaces and 



Intercellular Subst.ance, - - - - 27 

 Swimming Protoplasm, - - - - - 29 

 Pulsating Vacuoles in the Protoplasm of the large 



Swarm-spnres of Utothrix, - - - - 31 

 Creeping ProtopUasm, - - - - - 32 



Connecting Passages between ad jacent Cell-cavities, 45 

 Linaria Cymbalaria dropping its Seeds into Clefts 



in the Rocks, ------ 53 



Absorptive Cells on Root of Pcnstemon, - 87 



Centrifugal and Centripetal Transmission of Water, 94 

 Irrigation of Rain-water in Plants, - - - 97 

 Aerial Roots of a Tropical Orchid assuming the 



form of straps, - - - - - - 1 07 



Transverse section through absorption-roots of 



Saprophytes, - - - - - - 115 



Bladderworts, --.-... JOQ 

 Traps of Utricularia nef/lcrta, - . - . 121 

 Spinous Structures in the Pitfalls of Carnivorous 



Plants, 124 



Sarracenia purpurea, . - . - . 1-25 



Ascidia-bearing and Pitclier-plants, - - - 127 

 CepJiahlus foUiailaris, - . - . . 131 

 Yonng Nrprnthcs plants. - ■ - - - 132 



Page 

 Nepenthes destillatoria, .... - 133 

 Capturing apparatus in the Toothwort, Bartsia, 



and Butterwort, - 137 



Tentacles on leaf of Sun-dew, - - - - 145 

 Venus's Fly-trap [Dionwa muscipula), - - 148 



Capturing apparatus of the leaves of Aldro- 



vandia and Venus's Fly-trap, - - - 150 

 Aldrovandia vesiculoxa, . - - . . 151 



The Fly-catcher {DrosopluiUmn lusitanicum), - 155 

 Lonicera ciliosa in South Carolina, - - . 160 

 Hyph» of Parasitic Fungi, ... - 165 



Parasites on Hydrophytes, . - - - 169 



Seedlings of Parasitic Plants, - - - - 173 

 t'wscHte £■««/)«:« para.sitio on a Hop-stem, - - 175 

 Bastard Toad-flax (7%cs!'«m CT?/)m«7n), - - 177 

 Toothwort (Lathraa S(iuamaria), with suckers 



upon the roots of a Poplar, - - - - 181 



Langsdorßa hypioiiaa, from Central America, - 187 

 Parasitic Balanophoreae (Sct/haliuvi funglforiitc 



and Bnlaiwp/iora HUdenhrandtii), - - 189 

 Parasitic Balanophoreie (R]iopaloi:nemis phalloides 



and Hdosis f/ujajicnsis), .... 191 

 Parasitic Balanophorese (Lophophytum mirabile 



and Sarcophyte sauyuinea), - - - - 195 

 Oylinus Hypocistus and Cynmnorium coccineum, - 197 

 Rafflesiacege parasitic on trunks and branches, - 201 

 Parasitic Rafflesiacea upon a Cissus-root, - - 202 

 Raßlesia Padina, parasitic on roots upon the sur- 

 face of the ground. - - . . . 203 



